COMMERCIAL HIGH EFFICIENCY CONDENSING WATER HEATERS

XP FAMILYDIRECT VENTING UP TO 100 EQUIVALENT FEET OF PIPING (CPVC/PVC VENTING MATERIAL)

AC-U-TEMP—A TOTAL HOT WATER SUPPLY SYSTEMWith Ac-U-Temp, A. O. Smith makes it as easy as possible to install a complete packaged system. Ac-U-Temp systems are custom designed and built to fit your heating needs with tank sizes available from 80 gallons up to 10,000 gallons to meet your specifications and application requirements. Ac-U-Temp systems are shipped as complete systems, pre-piped and pre-wired. All the installer has to do is make the flue, gas, electrical and water connections, so field errors are minimized.

VERTICAL VENTING HORIZONTAL VENTING

DIRECT VENT VERTICAL

DIRECT VENT, VERTICAL VENT HORIZONTAL INTAKE

DIRECT VENT HORIZONTAL

The XP and XP Plus Water Heater models provide flexible and lower cost installation because they permit direct-vent air intake and exhaust runs up to 100 equivalent feet using CPVC/PVC venting material. With the XP models, vent runs do not need to use CPVC for the first 10 feet. Only with the XP Plus models will you have vent runs that need to use CPVC for the first 10 feet and PVC thereafter. The XP Family (Category IV) venting system’s intake and exhaust runs can terminate horizontally through a sidewall or vertically through the roof. Please consult the latest edition of the Installation Manual for detailed venting information and maximum/minimum venting distances.

XPTHE HEAT EXCHANGER Thanks to its leading-edge technology, the XP features a stainless steel heat exchanger designed to optimize efficiency while delivering long and trouble-free service. Simply put, the XP family is both fuel efficient and capable of minimizing operating costs with every heating cycle.

Designed for fully condensing operation throughout the heating range

All heating surfaces are 316L stainless steel to provide a long and trouble-free service life

Saves both fuel and operating costs with every cycle

Impervious to thermal shock

Air intake adapter.

Fully modulating burner capability which prevents energy-stealing short cycling and provides smooth system operation with higher overall system efficiencies. (Burner not shown in rendering)

The stainless steel heat exchanger construction allows the XP water heater to operate in a continuous condensing mode while maximizing longevity and delivering up to 96% thermal efficiency.

All XP models have flow switches with low water cutoffs as standard features, providing redundant flow and low water protection.

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Double Heat Exchanger Model

ModelNumber

Input Rating(Btu/hr)

AHRIThermal %

Water FlowTempurature Rise °F (°C)

70 100 140

XWH-150 150,000 96 GPH 248 173 124

XWH-200 200,000 96 GPH 336 235 168

XWH-285 285,000 96 GPH 474 332 237

XWH-400 400,000 96 GPH 665 465 332

XWH-500 500,000 96 GPH 831 582 416

XWH-600 600,000 96 GPH 997 698 499

XWH-700 700,000 96 GPH 1,164 815 582

XWH-800 800,000 96 GPH 1,330 931 665

XP Plus Model

XP Model

AOSCG01003 | Revised January 2017 | © 2017 A. O. Smith Corporation | hotwater.com | A. O. Smith | 500 Tennessee Waltz Pkwy | Ashland City, TN 37015 | Printed in U.S.A

A. O. Smith reserves the right to make product changes or improvements at any time without notice.

XP RECOVERY CAPACITIES

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XP PLUS THE HEAT EXCHANGER Thanks to its leading-edge technology, the XP Plus features a stainless steel heat exchanger designed to optimize efficiency while delivering long and trouble-free service. Simply put, the XP family is both fuel efficient and capable of minimizing operating costs with every heating cycle.

Utilizes leading-edge, multi-pass water tube heat exchanger to maximize heat transfer

Designed for fully condensing operation throughout the heating range

All heating surfaces are 316L stainless steel to provide a long and trouble-free service life

Saves both fuel and operating costs with every cycle

Impervious to thermal shock

XP Plus models have factory- installed flow switches and low water cutoffs as standard features, providing redundant flow and low water protection.

Factory sized and mounted all-bronze pump(s) are integrally mounted, wired and managed by the heater’s control.

Redundant ignition controls (one per burner) allow individual burner operation.

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Washable intake air filter.

Rugged welded and extruded aluminum alloy frame with removable heavy gauge steel jacket panels that allow easy access and service.

Multiple modulating burners capable of modulating between 20% and 100% fire while providing smooth starts and clean combustion. Each burner is a premix design, constructed of high temperature stainless steel

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and utilizing a woven metal fiber mesh covering. Each burner is also warranted for 5 years and fires in a radial 360-degree flame pattern. Burner ignition is direct spark with flame monitoring via a flame sensor.

The stainless steel construction of the water tube heat exchangers allow them to operate in a continuous condensing mode while maximizing longevity and delivering exceptional energy-saving performance.

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HIGH EFFICIENCY, HIGH INPUT COMMERCIAL XP FAMILY

With their combination of innovative control features and modulating capabilities, XP Family Water Heater models are the latest in high efficiency fully condensing products from A. O. Smith, offering high outputs for demanding, large-volume commercial applications. Thanks to a state-of-the-art stainless steel heat exchanger, the XP model can achieve thermal efficiencies up to 96% and the XP Plus model can achieve thermal efficiencies up to 99%.

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Double Heat Exchanger Model

SUPERIOR CONTROLTalk about having total control at your fingertips! The XP and XP Plus models use an intuitive touch control featuring the industry’s most current technology, touchscreen user interface, and the latest in energy savings algorithms. The control operates each of the burners as a separate water heater, which means that it is able to send error messages about problems with one burner while activating another—thus preventing system shutdowns. And since building management communications are a standard feature on every unit, the XP Plus is ready for immediate connection to existing building management systems.

UP TO 20:1 TURNDOWN ON XP PLUS MODELS & UP TO 5:1 ON XP MODELSThe secret to the stunning performance of the XP Family is its flexibility, thanks in part to the fully modulating burners. Because of the unique burner design that allows load-equalizing firing rates, the XP and XP Plus take temperature management to new levels of comfort and fuel efficiency by matching exact output to the building needs or requirements.

XP PLUS RECOVERY CAPACITIES

ModelNumber

Input Rating(Btu/hr)

AHRIThermal %

Water FlowTempurature Rise °F (°C)

40 100 140 (22) (22) (22)

XWH-1000 920,000 95.5GPHLPH

2,66210,078

1,0654,031

7612,880

XWH-1300 1,300,000 95GPHLPH

3,74214,167

1,4975,667

1,0694,048

XWH-1700 1,700,000 95.2GPHLPH

4,90418,565

1,9627,426

1,4015,304

XWH-2000 1,900,000 95.6GPHLPH

5,79421,931

2,3178,773

1,6556,266

XWH-2600 2,600,000 95.2GPHLPH

7,50128,393

3,00011,357

2,1438,112

XWH-3400 3,400,000 96GPHLPH

9,89137,441

3,95614,976

2,82610,697

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DESIGNED FOR A GREAT RANGE OF APPLICATIONSXP and XP Plus models are designed to be used in potable hot water applications, from large-volume, full-service hotels and

high-rise apartment complexes to casinos, resorts, government buildings, schools, hospitals and more.

XP AND XP PLUS AT A GLANCE • Top-of-the-line control with touchscreen

• Industry-leading thermal efficiencies

XP Plus is up to 99% thermal efficiency in low-temperature applications

XP is up to 96% thermal efficiency in low-temperature applications

• XP models ranging from 150,000

to 800,000 Btu/hr

• Vents in inexpensive PVC/CPVC pipe (can also be vented in AL29-4C® when specified or required by local codes)

• Models are CSA certified to the ANSI Z21.10.3-CSA 4.3 water heater standard and are AHRI listed with thermal efficiency ratings of up to 96% @ 100% fire and 140˚F outlet temperature

• Fully modulating with turndown rates up to 20:1 on XP Plus models and up to 5:1 on XP models.

• XP Plus model is ready for immediate connection to existing building management using MODBUS protocol

• Built-in redundancy helps to improve overall performance

• ENERGY STAR® qualified

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Return Water Temp at 20˚ F Delta-T

EFF @ 10% Fire EFF @ 25% Fire EFF @ 50% Fire EFF @ 100% Fire

Best Efficiency Ratings In The Industry

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